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feat: implement hover interaction in vanilla

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divyap 2026-03-30 23:41:56 +05:30
parent 91d55fdc90
commit 3e989a11fd
4 changed files with 103 additions and 0 deletions
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12
Week-1/Task-3/vanilla/index.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Task 3 — Hover Interaction (Vanilla Three.js)</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<script type="module" src="main.js"></script>
</body>
</html>

59
Week-1/Task-3/vanilla/main.js Normal file
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import * as THREE from 'three'
const scene = new THREE.Scene()
scene.background = new THREE.Color('#111111')
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000)
camera.position.z = 5
const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const geometry = new THREE.BoxGeometry(2, 2, 2)
const material = new THREE.MeshBasicMaterial({ color: 'orange' })
const cube = new THREE.Mesh(geometry, material)
scene.add(cube)
const raycaster = new THREE.Raycaster()
const mouse = new THREE.Vector2()
let isHovered = false
window.addEventListener('mousemove', (e) => {
mouse.x = (e.clientX / window.innerWidth) * 2 - 1
mouse.y = -(e.clientY / window.innerHeight) * 2 + 1
raycaster.setFromCamera(mouse, camera)
const hits = raycaster.intersectObject(cube)
if (hits.length > 0) {
if (!isHovered) {
isHovered = true
cube.material.color.set('hotpink')
cube.scale.set(1.15, 1.15, 1.15)
document.body.style.cursor = 'pointer'
}
} else {
if (isHovered) {
isHovered = false
cube.material.color.set('orange')
cube.scale.set(1, 1, 1)
document.body.style.cursor = 'default'
}
}
})
window.addEventListener('resize', () => {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
})
function animate() {
requestAnimationFrame(animate)
cube.rotation.x += 0.01
cube.rotation.y += 0.01
renderer.render(scene, camera)
}
animate()

16
Week-1/Task-3/vanilla/package.json Normal file
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{
"name": "task-3-vanilla",
"version": "0.0.0",
"private": true,
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build"
},
"devDependencies": {
"vite": "^5.0.0"
},
"dependencies": {
"three": "^0.163.0"
}
}

16
Week-1/Task-3/vanilla/style.css Normal file
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* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body, html {
width: 100%;
height: 100%;
overflow: hidden;
background: #111;
}
canvas {
display: block;
}